US3983990A - Conveyor mechanism - Google Patents
Conveyor mechanism Download PDFInfo
- Publication number
- US3983990A US3983990A US05/550,951 US55095175A US3983990A US 3983990 A US3983990 A US 3983990A US 55095175 A US55095175 A US 55095175A US 3983990 A US3983990 A US 3983990A
- Authority
- US
- United States
- Prior art keywords
- sphere
- cradle
- slot
- pair
- platform
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
- F41A9/01—Feeding of unbelted ammunition
- F41A9/04—Feeding of unbelted ammunition using endless-chain belts carrying a plurality of ammunition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/30—Details; Auxiliary devices
- B65G17/32—Individual load-carriers
- B65G17/36—Individual load-carriers having concave surfaces, e.g. buckets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
Definitions
- This invention relates to an improved conveyor mechanism, particularly to an endless conveyor assembly for linkless rounds of ammunition for high rate of fire weapon systems.
- the stud has a medial, sphere-like enlargement which is aligned with the tongue, and the arms of the clevis are spaced from the tongue so that a limited amount of twist is permitted between adjacent cradles.
- Other systems may be found in U.S. Pat. No. 3,190,179 issued to P. H. Benoit on June 22, 1965; U.S. Pat. No. 3,254,565 issued to C. E. LaFever et al. on June 7, 1966; and U.S. Pat. No. 2,915,947 issued to R. Heely on Dec. 8, 1961.
- the cradles or links of these systems each require a plurality of machined parts.
- a feature of this invention is the provision of a cradle of integral structure for use in a train of cradles in a constraining chute which has a universal joint intercoupling adjacent cradles. More particularly, the joint is provided by a truncated male sphere on one cradle and a slotted female sphere on the next adjacent cradle. Each cradle is provided with one male and one female sphere.
- FIG. 1 is a top plan view of a cradle or conveyor element embodying this invention
- FIG. 2 is a front view in elevation of the cradle of FIG. 1, shown disposed in a chute of U.S. Pat. No. 3,429,221;
- FIG. 3 is a perspective view of a train of cradles of FIG. 1, adapted to ride in the chute.
- the conveyor system includes an endless train of rounds cradles 10 guided by and within a chute 12.
- Each cradle or element of the train is adapted to carry a round of ammunition 14 or a fired cartridge case.
- the chute may be rigid as shown in FIG. 2; or may be flexible as shown, for example, in U.S. Pat. No. 2,479,633 by W. L. MacKenzie issued Aug. 23, 1949, to permit limited twist and fan.
- the chute guides and controls the train of cradles and, in conjunction with the cradles, guides and controls the rounds of cases.
- the chute has four pairs of spaced apart ribs 16, each pair of which forms a guide channel 18 to receive a foot 20 extending from the cradle.
- the cradle rides on and is pivotable about these feet.
- Each cradle has a body portion 22, a pair of spaced apart depending feet 20, a leading rigid arm 24 which terminates in a distal male sphere 26, which sphere is truncated by a pair of top and bottom flat surfaces 28 and 30, and a trailing rigid arm 32 which is formed as a clevis having two mutually spaced apart arms 34 and 36, which arms have two mutually opposed concavities 38 and 40, which concavities together define a slotted female sphere.
- the width of the space or slot between the two arms 34 and 36 is made slightly greater than the thickness of the male sphere between the two flat surfaces 28 and 30.
- the male sphere of one cradle may be passed through the slot of the female sphere of the adjacent cradle.
- the diameter of the male sphere is greater than the width of the slot. Rotating the adjacent cradles, out of the 90° angular misalignment, will interlock the male sphere within the female sphere.
- the spheres may be similarly unlocked.
- adjacent cradles may be angularly misaligned closely approaching 90° while still being positively intercoupled.
- adjacent cradles do not undergo a mutual angular displacement greater than 12°.
- a major portion of the male and female spheres remain in contact to provide an adequate bearing surface to prevent destruction and uncoupling of the resultant universal coupling in use.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
Abstract
A cradle is provided for use in a train of cradles in a constraining chute which has a universal joint intercoupling adjacent cradles. A joint is provided by a truncated male sphere on one cradle and a slotted female sphere on the next adjacent cradle. Each cradle is made in one piece and is provided with one male and one female sphere.
Description
1. Field of Use
This invention relates to an improved conveyor mechanism, particularly to an endless conveyor assembly for linkless rounds of ammunition for high rate of fire weapon systems.
2. Prior Art
An endless conveyor system for linkless rounds of ammunition for high rate of fire weapon systems is shown in U.S. Pat. No. 3,429,221 issued to R. G. Kirkpatrick on Feb. 25, 1969. In this system, an endless train of rounds cradles is designed to be pulled through a chute which limits and guides the train. An improved, pushable and pullable cradle is shown in U.S. Pat. No. 3,800,937 issued to D. P. Tassie on Apr. 2, 1974. Each of the cradles is coupled to the next adjacent cradle by a universal connection, comprising a clevis which receives a tongue, and a transverse stud passing through aligned transverse bores in the clevis and the tongue. The stud has a medial, sphere-like enlargement which is aligned with the tongue, and the arms of the clevis are spaced from the tongue so that a limited amount of twist is permitted between adjacent cradles. Other systems, for example, may be found in U.S. Pat. No. 3,190,179 issued to P. H. Benoit on June 22, 1965; U.S. Pat. No. 3,254,565 issued to C. E. LaFever et al. on June 7, 1966; and U.S. Pat. No. 2,915,947 issued to R. Heely on Dec. 8, 1959.
The cradles or links of these systems each require a plurality of machined parts.
It is an object of this invention to provide a cradle for the Kirkpatrick type system which will require but one part per cradle and will eliminate machining by permitting the cradle to be cast complete i.e., each cradle will be an integral structure.
A feature of this invention is the provision of a cradle of integral structure for use in a train of cradles in a constraining chute which has a universal joint intercoupling adjacent cradles. More particularly, the joint is provided by a truncated male sphere on one cradle and a slotted female sphere on the next adjacent cradle. Each cradle is provided with one male and one female sphere.
These and other objects, features, and advantages of the invention will be apparent from the following specification thereof when taken in conjunction with the accompanying drawing in which:
FIG. 1 is a top plan view of a cradle or conveyor element embodying this invention;
FIG. 2 is a front view in elevation of the cradle of FIG. 1, shown disposed in a chute of U.S. Pat. No. 3,429,221; and
FIG. 3 is a perspective view of a train of cradles of FIG. 1, adapted to ride in the chute.
The conveyor system includes an endless train of rounds cradles 10 guided by and within a chute 12. Each cradle or element of the train is adapted to carry a round of ammunition 14 or a fired cartridge case. The chute may be rigid as shown in FIG. 2; or may be flexible as shown, for example, in U.S. Pat. No. 2,479,633 by W. L. MacKenzie issued Aug. 23, 1949, to permit limited twist and fan. The chute guides and controls the train of cradles and, in conjunction with the cradles, guides and controls the rounds of cases.
The chute has four pairs of spaced apart ribs 16, each pair of which forms a guide channel 18 to receive a foot 20 extending from the cradle. The cradle rides on and is pivotable about these feet.
Each cradle has a body portion 22, a pair of spaced apart depending feet 20, a leading rigid arm 24 which terminates in a distal male sphere 26, which sphere is truncated by a pair of top and bottom flat surfaces 28 and 30, and a trailing rigid arm 32 which is formed as a clevis having two mutually spaced apart arms 34 and 36, which arms have two mutually opposed concavities 38 and 40, which concavities together define a slotted female sphere.
The width of the space or slot between the two arms 34 and 36 is made slightly greater than the thickness of the male sphere between the two flat surfaces 28 and 30. Thus, when adjacent cradles are angularly displaced by 90°, the male sphere of one cradle may be passed through the slot of the female sphere of the adjacent cradle. The diameter of the male sphere is greater than the width of the slot. Rotating the adjacent cradles, out of the 90° angular misalignment, will interlock the male sphere within the female sphere. The spheres may be similarly unlocked. Depending on the clearance provided between the slot in the female sphere and the thickness between the flats on the male sphere, adjacent cradles may be angularly misaligned closely approaching 90° while still being positively intercoupled. Conventionally, because of the limitations effected by the guides 16 and the arms 24 and 32, adjacent cradles do not undergo a mutual angular displacement greater than 12°. Thus, in all conventional usages, a major portion of the male and female spheres remain in contact to provide an adequate bearing surface to prevent destruction and uncoupling of the resultant universal coupling in use.
Claims (6)
1. An endless conveyor system comprising:
a chute having a pair of longitudinally extending, transversely opposed channels; and
an endless train of cradles for movement along said chute, each cradle having as a one-piece, integral structure all of the following:
a load-supporting platform,
a rigid leading arm fixed to said platform and projecting longitudinally therefrom,
a rigid trailing arm fixed to said platform and projecting longitudinally therefrom,
a pair of transversely spaced apart feet means fixed to said platform and projecting transversely therefrom and respectively disposed in and transversely constrained by said channels,
one of said arms terminating in a male sphere,
said male sphere being truncated by a pair of mutually spaced apart and parallel surfaces define a beam of a first thickness,
the other of said arms terminating in a clevis having a pair of subarms mutually spaced apart to define a slot of a second thickness greater than said first thickness, whereby when adjacent cradles are angularly displaced by 90°, the beam of one cradle may be passed into the slot of the adjacent cradle,
the inner faces of said subarms which define said slot each having a respective concavity,
said pair of concavities mutually defining a slotted female sphere,
the planar orientation of said slot being perpendicular to the planar orientation of said truncated male sphere, and
immediately adjacent cradles having the male sphere of one cradle disposed within the female sphere of the other cradle.
2. A system according to claim 1, wherein:
each of said platforms is adapted to support and constrain a round of ammunition.
3. A cradle for an endless train of cradles, comprising as a one piece, integral structure:
a load-supporting platform;
a rigid leading arm fixed to said platform and projecting longitudinally therefrom on a first axis;
a rigid trailing arm fixed to said platform and projecting longitudinally therefrom on said first axis;
a pair of transversely spaced apart feet means fixed to said platform and projecting transversely therefrom;
one of said arms terminating in a male sphere,
said male sphere being truncated by a pair of mutually spaced apart and parallel surfaces which are parallel to said first axis; and
the other of said arms terminating in a clevis having a pair of subarms mutually spaced apart to define a slot,
the inner faces of said subarms which define said slot each having a respective concavity,
said pair of concavities mutually defining a slotted female sphere,
the planar orientation of said slot being perpendicular to the planar orientation of said truncated male sphere.
4. A cradle according to claim 3, wherein:
said feet means define an axis of rotation for said platform.
5. A cradle according to claim 3, wherein:
the thickness of said slot is slightly greater than the thickness between said truncating surfaces of said male sphere and less than the diameter of said male sphere.
6. A system according to claim 1, wherein:
the thickness of said slot is slightly greater than the thickness between said truncating surfaces of said male sphere and less than the diameter of said male sphere.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/550,951 US3983990A (en) | 1975-02-19 | 1975-02-19 | Conveyor mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/550,951 US3983990A (en) | 1975-02-19 | 1975-02-19 | Conveyor mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
US3983990A true US3983990A (en) | 1976-10-05 |
Family
ID=24199240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/550,951 Expired - Lifetime US3983990A (en) | 1975-02-19 | 1975-02-19 | Conveyor mechanism |
Country Status (1)
Country | Link |
---|---|
US (1) | US3983990A (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0091772A1 (en) | 1982-04-05 | 1983-10-19 | General Electric Company | Transport mechanism for ammunition |
US4533038A (en) * | 1977-06-22 | 1985-08-06 | Manufacture De Machines Du Haut-Rhin | Conveyor for objects treated while continuously in motion |
US4638906A (en) * | 1985-11-19 | 1987-01-27 | Harris Graphics Corporation | Conveyor assembly |
CH673151A5 (en) * | 1987-06-29 | 1990-02-15 | Oerlikon Buehrle Ag | ROund feed chain to automatic firearm - comprises guide rib on cup with opposite coupling body and recess |
US5348141A (en) * | 1992-05-27 | 1994-09-20 | Campbell Machines Company | Material handling system |
US5429226A (en) * | 1993-12-15 | 1995-07-04 | Rexnord Corporation | Conveyor chain for carrying objects |
USD426366S (en) * | 1999-07-06 | 2000-06-06 | Gebo Conveyors Consultants & Systems Inc. | Conveyor puck |
US6158575A (en) * | 1998-04-28 | 2000-12-12 | Berg Technology, Inc. | Links for forming a connector transport chain |
US8763535B2 (en) | 2011-01-14 | 2014-07-01 | Pcp Tactical, Llc | Narrowing high strength polymer-based cartridge casing for blank and subsonic ammunition |
US8807008B2 (en) * | 2011-01-14 | 2014-08-19 | Pcp Tactical, Llc | Polymer-based machine gun belt links and cartridge casings and manufacturing method |
USD715888S1 (en) | 2012-01-13 | 2014-10-21 | Pcp Tactical, Llc | Radiused insert |
US8869702B2 (en) | 2011-01-14 | 2014-10-28 | Pcp Tactical, Llc | Variable inside shoulder polymer cartridge |
US8875633B2 (en) | 2011-01-14 | 2014-11-04 | Pcp Tactical, Llc | Adhesive lip for a high strength polymer-based cartridge casing and manufacturing method |
US10794671B2 (en) | 2011-01-14 | 2020-10-06 | Pcp Tactical, Llc | Polymer-based cartridge casing for subsonic ammunition |
US11448491B2 (en) | 2018-07-30 | 2022-09-20 | Pcp Tactical, Llc | Polymer cartridge with enhanced snapfit metal insert and thickness ratios |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1362523A (en) * | 1919-10-28 | 1920-12-14 | Blouen George | Coupling |
US1956298A (en) * | 1930-08-16 | 1934-04-24 | Harry D Lathrop | Chain |
US2065931A (en) * | 1934-08-24 | 1936-12-29 | Alling E Roy | Chain |
US2290981A (en) * | 1939-09-21 | 1942-07-28 | Walter Maguire Company Inc | Conveyer |
US3188794A (en) * | 1961-03-28 | 1965-06-15 | Raymond D Johnson | Illuminated chain and links thereof |
US3253512A (en) * | 1963-07-19 | 1966-05-31 | Rheinmetall Gmbh | Disintegrating ammunition belt for an automatic weapon |
US3269525A (en) * | 1964-07-14 | 1966-08-30 | Drahtwerk C S Schmidt Ag | Ball-jointed link chain |
US3344905A (en) * | 1966-10-17 | 1967-10-03 | Hofen Edward L Von | Chain |
US3429221A (en) * | 1967-12-18 | 1969-02-25 | Gen Electric | Constant velocity conveyor mechanism |
US3788450A (en) * | 1970-11-18 | 1974-01-29 | Siemens Ag | Device for transporting containers |
-
1975
- 1975-02-19 US US05/550,951 patent/US3983990A/en not_active Expired - Lifetime
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1362523A (en) * | 1919-10-28 | 1920-12-14 | Blouen George | Coupling |
US1956298A (en) * | 1930-08-16 | 1934-04-24 | Harry D Lathrop | Chain |
US2065931A (en) * | 1934-08-24 | 1936-12-29 | Alling E Roy | Chain |
US2290981A (en) * | 1939-09-21 | 1942-07-28 | Walter Maguire Company Inc | Conveyer |
US3188794A (en) * | 1961-03-28 | 1965-06-15 | Raymond D Johnson | Illuminated chain and links thereof |
US3253512A (en) * | 1963-07-19 | 1966-05-31 | Rheinmetall Gmbh | Disintegrating ammunition belt for an automatic weapon |
US3269525A (en) * | 1964-07-14 | 1966-08-30 | Drahtwerk C S Schmidt Ag | Ball-jointed link chain |
US3344905A (en) * | 1966-10-17 | 1967-10-03 | Hofen Edward L Von | Chain |
US3429221A (en) * | 1967-12-18 | 1969-02-25 | Gen Electric | Constant velocity conveyor mechanism |
US3788450A (en) * | 1970-11-18 | 1974-01-29 | Siemens Ag | Device for transporting containers |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4533038A (en) * | 1977-06-22 | 1985-08-06 | Manufacture De Machines Du Haut-Rhin | Conveyor for objects treated while continuously in motion |
EP0091772A1 (en) | 1982-04-05 | 1983-10-19 | General Electric Company | Transport mechanism for ammunition |
US4638906A (en) * | 1985-11-19 | 1987-01-27 | Harris Graphics Corporation | Conveyor assembly |
CH673151A5 (en) * | 1987-06-29 | 1990-02-15 | Oerlikon Buehrle Ag | ROund feed chain to automatic firearm - comprises guide rib on cup with opposite coupling body and recess |
US5348141A (en) * | 1992-05-27 | 1994-09-20 | Campbell Machines Company | Material handling system |
US5429226A (en) * | 1993-12-15 | 1995-07-04 | Rexnord Corporation | Conveyor chain for carrying objects |
US6158575A (en) * | 1998-04-28 | 2000-12-12 | Berg Technology, Inc. | Links for forming a connector transport chain |
USD426366S (en) * | 1999-07-06 | 2000-06-06 | Gebo Conveyors Consultants & Systems Inc. | Conveyor puck |
US9989343B2 (en) | 2010-07-30 | 2018-06-05 | Pcp Tactical, Llc | Base insert for polymer ammunition cartridges |
US9599443B2 (en) | 2010-07-30 | 2017-03-21 | Pcp Tactical, Llc | Base insert for polymer ammunition cartridges |
US8875633B2 (en) | 2011-01-14 | 2014-11-04 | Pcp Tactical, Llc | Adhesive lip for a high strength polymer-based cartridge casing and manufacturing method |
US9372054B2 (en) | 2011-01-14 | 2016-06-21 | Pcp Tactical, Llc | Narrowing high strength polymer-based cartridge casing for blank and subsonic ammunition |
US11976911B2 (en) | 2011-01-14 | 2024-05-07 | Pcp Tactical, Llc | Polymer-based cartridge casing for subsonic ammunition |
US9003973B1 (en) | 2011-01-14 | 2015-04-14 | Pcp Tactical, Llc | Narrowing high strength polymer-based cartridge casing for blank and subsonic ammunition |
US20150285605A1 (en) * | 2011-01-14 | 2015-10-08 | Pcp Tactical, Llc | Polymer-based machine gun belt links and cartridge casings and manufacturing method |
US9194680B2 (en) * | 2011-01-14 | 2015-11-24 | Pcp Tactical, Llc | Polymer-based machine gun belt links and cartridge casings and manufacturing method |
US9261335B2 (en) | 2011-01-14 | 2016-02-16 | Pcp Tactical, Llc | Frangible portion for a high strength polymer-based cartridge casing and manufacturing method |
US8869702B2 (en) | 2011-01-14 | 2014-10-28 | Pcp Tactical, Llc | Variable inside shoulder polymer cartridge |
US11353299B2 (en) | 2011-01-14 | 2022-06-07 | Pcp Tactical, Llc | Polymer-based cartridge casing for subsonic ammunition |
US8807008B2 (en) * | 2011-01-14 | 2014-08-19 | Pcp Tactical, Llc | Polymer-based machine gun belt links and cartridge casings and manufacturing method |
US8763535B2 (en) | 2011-01-14 | 2014-07-01 | Pcp Tactical, Llc | Narrowing high strength polymer-based cartridge casing for blank and subsonic ammunition |
US9995561B2 (en) | 2011-01-14 | 2018-06-12 | Pcp Tactical, Llc | Narrowing high strength polymer-based cartridge for blank and subsonic ammunition |
US10794671B2 (en) | 2011-01-14 | 2020-10-06 | Pcp Tactical, Llc | Polymer-based cartridge casing for subsonic ammunition |
USD765214S1 (en) | 2012-01-13 | 2016-08-30 | Pcp Tactical, Llc | Radiused insert |
USD715888S1 (en) | 2012-01-13 | 2014-10-21 | Pcp Tactical, Llc | Radiused insert |
US11448491B2 (en) | 2018-07-30 | 2022-09-20 | Pcp Tactical, Llc | Polymer cartridge with enhanced snapfit metal insert and thickness ratios |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: PITTSBURGH NATIONAL BANK Free format text: SECURITY INTEREST;ASSIGNOR:ALLEGHENY LUDLUM CORPORATION;REEL/FRAME:004855/0400 Effective date: 19861226 |
|
AS | Assignment |
Owner name: PITTSBURGH NATIONAL BANK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. RECORDED ON REEL 4855 FRAME 0400;ASSIGNOR:PITTSBURGH NATIONAL BANK;REEL/FRAME:005018/0050 Effective date: 19881129 |